hundred 百

thousand 千

million 百萬

billion 十億

trillion 兆

100 one hundred 一百

300 three hundred 三百

600 six hundred 六百

1,000 one thousand 一千

4,000 four thousand 四千

7,000 seven thousand 七千

10,000 ten thousand 一萬	100,000,000 one hundred million 一億
50,000 five thousand 五萬	600,000,000 six hundred million 六億
70,000 seven thousand 七萬	800,000,000 eight hundred million 八億
100,000 one hundred thousand 十萬	1,000,000,000 one billion 十億
400,000 four hundred thousand 四十萬	3,000,000,000 three billion 三十億
800,000 eight hundred thousand 八十萬	4,000,000,000 four billion 四十億
1,000,000 one million 一百萬	10,000,000,000 ten billion 一百億
5,000,000 five million 五百萬	100,000,000,000 one hundred billion 一千億
9,000,000 nine million 九百萬	1,000,000,000,000 one trillion 一兆
	10,000,000,000,000 ten trillion 十兆
10,000,000 ten million 一千萬
60,000,000 sixty million 六千萬
90,000,000 ninety million 九千萬

2.   複雜數字練習 #三個訣竅

1.     從右邊開始，每三個數字加逗點

2.     從大的數字開始說起

3.     從最後一組數字前要加and

(數字單位不加s)

358        three hundred (and) fifty-eight	709        seven hundred (and) nine
4,650    four thousand six hundred (and) fifty	2,500     two thousand (and) five hundred
1,300    one thousand (and) three hundred	4,400     four thousand (and) four hundred
也可以用比較口語的 1,300  thirteen hundred	也可以說 forty-four hundred，但較不正式
59,483                fifty-nine thousand four hundred (and) eighty-three
246,099              two hundred and forty-six thousand (and) ninety – nine
7,809,311          seven million eight hundred and nine thousand three hundred (and) eleven
98,003,865       ninety-eight million three thousand eight hundred (and) sixty-five
590,040,567     five hundred and ninety million forty thousand five hundred (and) sixty-seven
3,874,560,980 three billion eight hundred seventy-four million five hundred and sixty thousand nine hundred (and) eighty

3.   其他常見數字用法 (我們在講幾位數的時候用 figure )